How to Add Sequential Bates Numbers to Multiple PDF Documents
Question details
The user wants to apply Bates numbering to multiple PDF files, ensuring the number sequence continues correctly across separate documents.

- Product
- PDF Editor
- Device & OS
- not provided
- Scenario
- Indexing legal documents, invoices, or business records that are split across multiple separate PDF files.
- Observed behavior
- Needs a method to add a starting number and automatically or manually increment it across a batch of documents or distinct processing sessions.
Gather all the PDF documents you want to process in a single folder and decide on your Bates numbering prefix, suffix, and digit length (e.g., 00001ITS) to maintain consistency.
Add Bates Numbering to Multiple PDFs in a Single Batch
The most efficient way to ensure continuous numbering is to select all required PDFs in a single operation so the PDF editor automatically increments the sequence.
Processing your documents simultaneously allows the software to calculate the page counts and continue the indexing sequence seamlessly from the first file to the last.
Open your PDF editor and navigate to the Bates Numbering tool, which is typically located under the 'Organize Pages', 'Edit PDF', or 'More Tools' section.
Select the option to 'Add' Bates numbering and choose all the PDF files you want to include in this numbering sequence from your computer.
In the batch processing dialog box, arrange the files in the exact order you want them numbered. The sequence will apply from the top file downwards.
Set up your numbering format by defining the number of digits, starting number, prefixes, and suffixes. Click 'OK' or 'Apply' to process the entire batch sequentially.

Continue Bates Numbering Across Separate Processing Times
If you are processing documents on different days, you will need to manually record and enter the next starting number for each new batch.
Use WPS Office to Organize and Number PDF Pages
WPS Office provides robust PDF editing capabilities, including the ability to merge, organize, and apply page numbers and headers across multiple PDF documents easily. It is an excellent tool for indexing and preparing your files.
- 1. Open PDF in WPS Office: Launch WPS Office and open the PDF tab to load your document.
- 2. Access Header/Footer Tools: Navigate to the 'Insert' or 'Edit' tab and click on 'Header and Footer' or 'Page Number'.
- 3. Customize Numbering: Set your desired starting number, choose a prefix if needed, and select the placement on the page.
- 4. Apply to Document: Click 'Apply' to index your document sequentially.

Frequently Asked Questions
What is a Bates number?
Bates numbering is an indexing method primarily used for legal, medical, and business documents. It places a unique, sequential alphanumeric number on each page of a document or across multiple documents for easy identification and retrieval.
Can I remove Bates numbering after it has been applied?
Yes, most professional PDF editors have a 'Remove Bates Numbering' option located in the same menu where you added it. This function scans the document headers and footers and deletes the generated sequence.
What happens if I insert a new page into a Bates-numbered PDF?
If you insert a new page after numbering, it will not automatically receive a Bates number. You will typically need to remove the existing Bates numbering and reapply it to the entire document to ensure the sequence remains uninterrupted and accurate.
How do I prevent the numbering sequence from resetting on each new PDF file?
To keep the sequence continuous, you must process all files in a single batch operation so the software auto-increments across the files. Alternatively, if processing separately, you must manually set the 'Start Number' for each new file based on where the previous document ended.




